Question

The ___________ energy in a mechanical system is determined by adding the potential and kinetic energy together.
A total
B massive
The initial ___________ energy is equal to zero because the starting point is set at zero height to make things easier.
A kinetic
B potential
In the example, the final kinetic energy is determined to be ___________ because at the peak height, the ball instantaneously stops.
A positive
B zero
C negative
In this system, potential and kinetic energy are ________________ proportional.
A inversely
B directly
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Answer 1

1. A — total
2. B — potential
3. B — zero
4. A — inversely